[Form 4] ATN International, Inc. Insider Trading Activity

Rhea-AI Filing Summary

ATN International, Inc. ten percent owner Cornelius B. Prior Jr. reported a bona fide gift of 1,700 shares of Common Stock. The gift carried a reported price of $0.00 per share, reflecting that no sale for cash took place.

After the gift, Prior directly holds 4,174,303 Common shares, and also reports indirect holdings of 363,424 shares as Trustee of a revocable trust, 8,227 shares through Tropical Aircraft Co., and 500 shares held by his wife. This filing records a non-market transfer rather than a purchase or sale.

Insider Trade Summary

1,700 shares gifted

Mixed 4 txns

Insider PRIOR CORNELIUS B JR

Role null

Type	Security	Shares	Price	Value
Gift	Common Stock	1,700	$0.00	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 4,174,303 shares (Direct, null); Common Stock — 500 shares (Indirect, By: Wife)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

PRIOR CORNELIUS B JR

(Last) (First) (Middle)

C/O ATN INTERNATIONAL, INC.

500 CUMMINGS CENTER

(Street)

BEVERLY MASSACHUSETTS 01915

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ATN International, Inc. [ ATNI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/17/2026		G		1,700	D	$0	4,174,303	D
Common Stock								500	I	By: Wife
Common Stock								8,227	I	By Tropical Aircraft Co.
Common Stock								363,424	I	Trustee of Revocable Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Andy Fienberg , Attorney-in-Fact	04/20/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Cornelius B. Prior Jr. report in this ATNI Form 4 filing?

He reported a bona fide gift of 1,700 shares of ATN International Common Stock. The transaction used code G, indicating a gift, and was recorded at $0.00 per share, meaning no cash sale occurred and it reflects a non-market transfer.

How many ATNI shares did Cornelius B. Prior Jr. retain after the reported gift?

Following the 1,700-share gift, he directly holds 4,174,303 ATN International Common shares. He also reports additional indirect positions through a revocable trust, Tropical Aircraft Co., and shares held by his wife, indicating a substantial remaining ownership stake.

Is the 1,700-share ATNI transaction a sale or a purchase by the insider?

The 1,700-share transaction is a bona fide gift, not a sale or purchase. It is coded G on the Form 4, which denotes a gift disposition, so it does not reflect open‑market trading or a change in cash position for the reporting person.

What indirect ATNI holdings does Cornelius B. Prior Jr. report in this Form 4?

He reports 363,424 ATN International shares held as Trustee of a revocable trust, 8,227 shares held by Tropical Aircraft Co., and 500 shares held by his wife. These are classified as indirect ownership positions in addition to his direct shareholdings.

Does this ATNI Form 4 filing show any insider buying or selling in the market?

No market buys or sells are reported; the only quantified transaction is a 1,700-share bona fide gift at $0.00 per share. The filing mainly updates direct and indirect holdings rather than showing open‑market purchases or sales of ATN International stock.